A crash between two passenger trains in South Africa on Friday left more than 300 people injured, a spokeswoman for Johannesburg Emergency Services told the Associated Press. No fatalities have been reported so far.

326 people were taken to hospitals near the accident. “For now we have removed people with minor to serious injuries, but none critical,” Nana Radebe said. She added that firefighters had looked for people trapped inside the cars.

The crash took place near Booyens station, the BBC reports. The trains were both traveling from Johannesburg to the township of Soweto, the Metrorail spokeswoman for the Gauteng provice, Lillian Mofokeng said.

According to the AP, one commuter told the African News Agency, “The one train had stopped because of a signal when another came from behind us hooting and smashed into its back.”

The cause of the accident is officially unknown. “The cause of the crash is currently under investigation,” a spokesperson for ER24 paramedic service told the BBC. “But we do know two trains collided and one was partially derailed.”

Photo credit: AP Images. Contact the author of this post: brendan.oconnor@gawker.com.